Winter: Stored XSS through Brand Settings custom styles
High-risk advisory
CVE-2026-32257
Summary
Winter: Stored XSS through Brand Settings custom styles
Why it matters
GitHub has published a reviewed security advisory for winter/wn-backend-module. Prioritize it with other application dependency updates.
Operator check
Check whether winter/wn-backend-module is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available.
Sources
PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.